Remove the TargetMachine forwards for TargetSubtargetInfo based
information and update all callers. No functional change.

llvm-svn: 214781
diff --git a/llvm/lib/Target/X86/X86PadShortFunction.cpp b/llvm/lib/Target/X86/X86PadShortFunction.cpp
index 6639875..adc05b2 100644
--- a/llvm/lib/Target/X86/X86PadShortFunction.cpp
+++ b/llvm/lib/Target/X86/X86PadShortFunction.cpp
@@ -105,7 +105,7 @@
   if (!TM->getSubtarget<X86Subtarget>().padShortFunctions())
     return false;
 
-  TII = TM->getInstrInfo();
+  TII = TM->getSubtargetImpl()->getInstrInfo();
 
   // Search through basic blocks and mark the ones that have early returns
   ReturnBBs.clear();
@@ -195,7 +195,8 @@
       return true;
     }
 
-    CyclesToEnd += TII->getInstrLatency(TM->getInstrItineraryData(), MI);
+    CyclesToEnd += TII->getInstrLatency(
+        TM->getSubtargetImpl()->getInstrItineraryData(), MI);
   }
 
   VisitedBBs[MBB] = VisitedBBInfo(false, CyclesToEnd);